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Your Wimbledon questions answered before the finals

Your Wimbledon questions answered before the finals

BBC News10 hours ago
We're into the final weekend of Wimbledon, and BBC Sport has continued to ask for your questions.Hundreds of you have been in touch and we've picked out some of the best to take a look at.Read on for the final instalment from our Ask Me Anything team.
Do racquet strings ever break? If so, how?
Bertie ArnoldThey do break - and when they do, it is more likely to be friction over force.Paul Skipp - head of the Wimbledon stringing team - told us the strings most commonly break because they have been rubbing against each other."It's going to be the friction," he said. "As they move, they slide, and they cause the friction. When you hit spin and they slide back and forth, that's the thing that will cause the strings to break."Players generally have their racquets restrung after every match. The tension they ask for can differ depending on the surface they are playing on, as well as the weather conditions, which can affect the speed at which the ball moves.
How many matches are played during the tournament?
Martin in WiltshireA total of 675 matches are played across the 18 courts during Wimbledon fortnight.That includes men's and women's singles, doubles and mixed doubles, boys and girls' junior events and the wheelchair tournaments.
Why do we no longer see the Chelsea Pensioners at Wimbledon?
NataliaThe Chelsea Pensioners may still attend Wimbledon but may not be in the spotlight as much.They were last pictured in 2022.The All England Lawn Tennis and Croquet Club (AELTC) says 16 tickets per day are allocated between the Lest We Forget and Not Forgotten Associations. The members of both include Chelsea Pensioners, as well as service personnel involved in more recent conflicts.The tickets given alternate between Centre Court and Court One for the first 12 days of the tournament.
Why do the women's champions change so often while the men's don't?
Nicky in St AlbansIn the past 10 years of Wimbledon, there have been only four different men's winners, while the women's tournament has had nine different champions.Former world number five Daniela Hantuchova believes the spread of Grand Slam winners in women's tennis is due to the strength of the overall field."I feel like the field is much stronger across the top 100 - the physicality has moved to another level," said Hantuchova. "It makes it so much more exciting on the women's tour because we have so many different stories. It makes our sport even more entertaining and more exciting to watch."Former Wimbledon champion Marion Bartoli says there is no standout player now, unlike when Serena Williams was dominant."The same as Steffi Graf, the same as Monica Seles or Billie-Jean King and Martina Navratilova and you can go down the list of all of the greats," she said."When you have the chance of playing in the era of someone like Serena, it was a chance because she helped us to try to take our game to another level. "That dominance factor, the same as trying to beat Rafael Nadal at Roland Garros, it just makes the rest of the field have fewer chances to become a champion."This article is the latest from BBC Sport's Ask Me Anything team.
What is Ask Me Anything?
Ask Me Anything is a service dedicated to answering your questions.We want to reward your time by telling you things you do not know and reminding you of things you do.The team will find out everything you need to know and be able to call upon a network of contacts including our experts and pundits.We will be answering your questions from the heart of the BBC Sport newsroom, and going behind the scenes at some of the world's biggest sporting events.Our coverage will span the BBC Sport website, app, social media and YouTube accounts, plus BBC TV and radio.
More questions answered...
Why is there a pineapple on Wimbledon's men's trophy?How are famous faces invited into Wimbledon's royal box?Courts and toilet breaks - your Wimbledon questions answered
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Concussion rules Garry Ringrose out of first Lions Test against Australia
Concussion rules Garry Ringrose out of first Lions Test against Australia

Powys County Times

time7 minutes ago

  • Powys County Times

Concussion rules Garry Ringrose out of first Lions Test against Australia

Garry Ringrose is unavailable for the British and Irish Lions' first Test against Australia on Saturday after head coach Andy Farrell confirmed he was struggling with concussion. Ringrose suffered a head injury in Wednesday's victory over the ACT Brumbies and faces a minimum 12-day stand down period, preventing him from taking part in the series opener in Brisbane. And in an additional setback, Farrell is set to call up cover at hooker after Luke Cowan-Dickie was forced off in Saturday's 48-0 victory over an AUNZ Invitational XV at Adelaide Oval after appearing to be knocked out during a tackle. 'Garry had a delayed reaction. He had headaches for a day and it carried on for the next day so he went through concussion protocols and failed those,' Farrell said. 'Unfortunately for him and for us he's 12 days so that puts him out of the first Test and back in for the midweek game before the second Test (against First Nations & Pasifika XV on July 22). 'You don't mess around with these things and it is unfortunate for him and everyone else. He's in good spirits anyway so we crack on.' Cowan-Dickie was driven from the field in the medical cart with his head in a supportive brace after being hit by Lukhan Salakaia-Loto's knee, shortly before half-time. The England front row later waved to fans as he walked around the pitch but he is now likely to face a spell out that means an additional hooker must be summoned Down Under as quickly as possible. Jamie George, who is currently on England's tour in Argentina, trained with the Lions last month but Dewi Lake is already in the same time zone and a shorter flight away, due to being part of the Wales squad that is in Japan. 'We will see how things pan out over the next 24 hours. It will be the right person for the squad because we are down to the business end and there is a lot of rugby to be played,' Farrell said. Owen Farrell produced an eye-catching 31 minutes in the first appearance of his fourth Lions tour but Andy Farrell limited his praise of his son to 'he did OK, as did many others'. Owen Farrell comes on to appear in his fourth Lions tour 👏🦁 Watch every match live on Sky Sports. #Lions2025 #WeGoBeyond — British & Irish Lions (@lionsofficial) July 12, 2025 Owen Farrell slotted in at inside centre and worked well alongside fly-half Marcus Smith, providing direction and an extra creative spark through his passing and kicking that led to two tries. Huw Jones is now favourite to start against the Wallabies at outside centre following Ringrose's concussion and he was the Lions' most dangerous player until he was replaced by Farrell. He gelled well with Scotland midfield partner Sione Tuipulotu and Farrell said: 'Huw and Sione were very good. We've got nice back-up there.' Bundee Aki and Ringrose looked poised to start the first Test in the centres but the Lions could choose to stick with established national combinations, so Ringrose's misfortune might see Tuipulotu and Jones selected as a pair. 'Who knows which way we would have gone because it is true what we said about leaving it open,' Farrell said. 'I know people think we had a fixed mind after Wednesday's game against the Brumbies but that's not the truth. 'We will sit down and assess that game and then we will have a tough task in picking what's going to be a good Test side to take on Australia in the first game.'

The science that shows Hawk-Eye isn't as accurate as it seems
The science that shows Hawk-Eye isn't as accurate as it seems

Telegraph

time12 minutes ago

  • Telegraph

The science that shows Hawk-Eye isn't as accurate as it seems

At the Madrid Masters in April, top seed Alexander Zverev was given a warning for unsportsmanlike behaviour. His offence was to take out his phone and snap a picture of a clear ball mark in the clay which was more than an inch outside the line. The electronic system Hawk-Eye had called it in, and he lost the point. 'The ball is not just a little bit – a millimetre – in or out, it was like four, five centimetres,' the German said in a post-match press conference. World No 21 Donna Vekic branded the line call as 'insanity'. It is one of several recent cases in which players have questioned the accuracy of Hawk-Eye, which this year replaced line judges at Wimbledon after 147 years. World No 1 Aryna Sabalenka also took pictures of a disputed ball mark during her quarter-final victory over Elise Mertens at the Stuttgart Open in April. At this year's Wimbledon, Emma Raducanu said it was 'disappointing' that the 'calls can be so wrong' while Jack Draper argued after his second-round defeat: 'I don't think it's 100 per cent accurate.' Scientific experts increasingly believe the players have a point. In 2009, Professor Harry Collins of the University of Cardiff wrote a paper highlighting the problems with Hawk-Eye, and he believes little has changed. 'Hawk-Eye is useful for big errors but for very small errors everybody knows that the thing just cannot be exact,' he said. How Hawk-Eye really works Tennis viewers may not realise that Hawk-Eye is not a true video-replay of the shot, but a virtual reality simulation based on the speed and trajectory of the ball. It relies on a network of 10 high-speed cameras which capture the ball from different angles at a fast frame rate, feeding the movement into a computer algorithm which then triangulates the position, creating a reconstructed image of the flight path. It means that the final line call is not where the ball landed, but where it 'should' have landed based on how it was moving. The distinction is important. Even Hawk-Eye Innovations, which developed the technology, admits that the system has a mean error rating of 2.2mm, which may not sound much, but can have big implications for players hitting shots with pinpoint accuracy. Critics also point out that if 2.2mm is the mean error rate then, on occasions, it must be far less accurate than that. The company has never released information on just how inaccurate Hawk-Eye can be, but if standard calculations are used to estimate the expected distribution of errors, it suggests accuracy could be out by more than 5mm in one in 20 occasions, and more than 7mm in one in 100 shots. It is also unknown if the accuracy rate falls for certain types of shots – such as killer forehands or super-fast serves, where the camera frame rate struggles to keep up with balls flying at 150mph. Likewise, it is unclear how well the system accounts for spin which can cause a ball to suddenly drop like a stone in mid-air or swerve unexpectedly to the left or right. The system is also known to be impacted by both sunlight, shadow and floodlights as well as wind which can cause the cameras to wobble. The lines on the tennis court can sometimes be obscured by the players themselves. In the Zverev example in Madrid, it was speculated that the cameras had misread a clay grooming line to the left of the court, believing the mark to be the real sideline. Professor Collins added: 'A painted line on a tennis court cannot be a sharp edge, and when a tennis ball bounces it distorts, and you have a hairy, distorted tennis ball next to the ragged edge of a line, so it can't be exact. 'The way it ought to work is when the ball is close to the line, within a couple of millimetres, then there should be a let or the umpire's decisions should count. 'It's dangerous to rely on this technology alone because it is misleading the public into thinking that virtual reality is real reality.' Electronic line calling has been used instead of line judges at the US Open and Australian Open since 2021 and the International Tennis Federation told The Telegraph that it has been 'rigorously assessed' against a wide range of criteria including accuracy, reliability, suitability and practicality. But there have been numerous incidents when players and viewers claim the technology has gone wrong. A glitch in the system During a first round match of last year's Cincinnati Open, American Brandon Nakashima hit out a forehand which should have seen him facing a break point against compatriot Taylor Fritz. But the electronic line call stayed silent until later on in the point when it finally corrected the error, disrupting the game and forcing a replay. At the 2024 Miami Open, during the match between Australian Daria Kasatkina and Romania's Sorana Cirstea, a ball that was clearly outside the line was called in, with Hawk-Eye footage showing it moving in the wrong direction. Defending champion Carlos Alcaraz was overheard complaining about some of the calls during his third round win at Wimbledon this year. Last year, a paper by Nigerian researchers warned that there can be gaps in data captured leading to 'less accurate predictions or incomplete information about the ball's path' and said the system could be stymied by 'unorthodox deliveries' or 'poor calibration of equipment'. Fans of electronic line calling claim that even with the errors Hawk-Eye is still more accurate than line judges, and argue that contested shots often look different on TV because of the 60 frames per second rate of broadcast cameras, which causes motion blur. In comparison, testing of the technology is done using cameras of 1000 frames per second. A question of trust All England Club chair Debbie Jevans argues that players have been asking for electronic line calling for years because they thought it was more accurate, while Tim Henman has branded this year's Wimbledon complaints as 'garbage' claiming Hawk-Eye was '100 per cent accurate'. However, critics say that if tournaments continue to use the technology, it should be made clear that the Hawk-Eye replays are not true footage and that they can be prone to errors. Professor Robert Evans, of Cardiff University, who co-authored the 2008 Hawk-Eye paper with Professor Collins, said: 'It was more the way it was presented as completely accurate, with no error and no mistakes, that was the focus of our critique. 'Viewers should be told they are not watching a replay of the real event.' The Telegraph contacted Hawk-Eye Innovations on three occasions to learn more about testing, accuracy and error distribution but did not receive a reply.

Concussion rules Garry Ringrose out of first Lions Test against Australia
Concussion rules Garry Ringrose out of first Lions Test against Australia

The Herald Scotland

time16 minutes ago

  • The Herald Scotland

Concussion rules Garry Ringrose out of first Lions Test against Australia

And in an additional setback, Farrell is set to call up cover at hooker after Luke Cowan-Dickie was forced off in Saturday's 48-0 victory over an AUNZ Invitational XV at Adelaide Oval after appearing to be knocked out during a tackle. Garry Ringrose suffered a head injury in Wednesday's victory over the ACT Brumbies (Robbie Stephenson/PA) 'Garry had a delayed reaction. He had headaches for a day and it carried on for the next day so he went through concussion protocols and failed those,' Farrell said. 'Unfortunately for him and for us he's 12 days so that puts him out of the first Test and back in for the midweek game before the second Test (against First Nations & Pasifika XV on July 22). 'You don't mess around with these things and it is unfortunate for him and everyone else. He's in good spirits anyway so we crack on.' Cowan-Dickie was driven from the field in the medical cart with his head in a supportive brace after being hit by Lukhan Salakaia-Loto's knee, shortly before half-time. The England front row later waved to fans as he walked around the pitch but he is now likely to face a spell out that means an additional hooker must be summoned Down Under as quickly as possible. Jamie George, who is currently on England's tour in Argentina, trained with the Lions last month but Dewi Lake is already in the same time zone and a shorter flight away, due to being part of the Wales squad that is in Japan. 'We will see how things pan out over the next 24 hours. It will be the right person for the squad because we are down to the business end and there is a lot of rugby to be played,' Farrell said. Owen Farrell produced an eye-catching 31 minutes in the first appearance of his fourth Lions tour but Andy Farrell limited his praise of his son to 'he did OK, as did many others'. Owen Farrell comes on to appear in his fourth Lions tour 👏🦁 Watch every match live on Sky Sports.#Lions2025 #WeGoBeyond — British & Irish Lions (@lionsofficial) July 12, 2025 Owen Farrell slotted in at inside centre and worked well alongside fly-half Marcus Smith, providing direction and an extra creative spark through his passing and kicking that led to two tries. Huw Jones is now favourite to start against the Wallabies at outside centre following Ringrose's concussion and he was the Lions' most dangerous player until he was replaced by Farrell. He gelled well with Scotland midfield partner Sione Tuipulotu and Farrell said: 'Huw and Sione were very good. We've got nice back-up there.' Bundee Aki and Ringrose looked poised to start the first Test in the centres but the Lions could choose to stick with established national combinations, so Ringrose's misfortune might see Tuipulotu and Jones selected as a pair. Huw Jones is now favourite to start against the Wallabies at outside centre (David Davies/PA) 'Who knows which way we would have gone because it is true what we said about leaving it open,' Farrell said. 'I know people think we had a fixed mind after Wednesday's game against the Brumbies but that's not the truth. 'We will sit down and assess that game and then we will have a tough task in picking what's going to be a good Test side to take on Australia in the first game.'

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